https://bugs.winehq.org/show_bug.cgi?id=48878
--- Comment #4 from Luca Boccassi luca.boccassi@gmail.com --- Created attachment 66822 --> https://bugs.winehq.org/attachment.cgi?id=66822 Patch to use DEB_HOST_ARCH instead of DEB_BUILD_ARCH
DEB_BUILD_ARCH references the architecture of the machine where the build is happening, not the architecture the packages are being built for. This allows dpkg-buildpackage -ai386 to run (it still requires a solution for wine-tools to complete successfully in a self-contained manner).